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Problem 5
Page 685
Section: Problems by Topic
Chapter 16: Aqueous Ionic Equilibrium
Textbook ExpertVerified Tutor
13 Nov 2021
Given information
Concentration of benzoic acid in pure water = 
Concentration of sodium benzoate in pure water = 
Step-by-step explanation
Step 1.
Standard value of Ka for benzoic acid = 
Concentration of of benzoic acid in pure water =
Equilibrium reaction of benzoic acid is as follows:
Using ICE table;
 |
+ |  |
 |
 |
+ |  |
|
| Initial |  |
 |
|
||||
| Change |  |
 |
|
||||
| Equilibrium |  |
 |
|
Substitute all the values;
The value of x is very small so it get neglected.
So, the concentration of is 
Now, the percentage of benzoic acid is calculated as follows:
Percentage of Ionization of acid =
Percentage of benzoic acid = 
Percentage of benzoic acid = 
Percentage of benzoic acid =
%
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Principles of Chemistry Molecular Approach
3rd Edition, 2014
Tro
ISBN: 9780321971944
Solutions
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Section
- Problem 1
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